TOKYO, March 28 (Reuters) - Japan’s Nikkei share average rebounded from more than a six-week low on Tuesday morning due to a pause in the yen’s strong trend, with most sectors rose to positive territory.

With the end of the business year-end looming on March 31 for a majority of listed companies, the market was also underpinned by investor purchases of stocks before they go ex-dividend later in the day.

The Nikkei rose 1.0 percent to 19,177.10 in midmorning trade, after plumbing to its lowest level since Feb. 9 on the previous day as U.S. President Donald Trump’s setback on his healthcare reform bill raised questions about his ability to push through his planned stimulus policies.

“Investors were overly risk off yesterday,” said Hikaru Sato, a senior technical analyst at Daiwa Securities. “That said, for the next few weeks, the dollar-yen may still be volatile.”

He added that the market continues to focus on developments on U.S. tax reform and infrastructure spending as well as political events in Europe such as the French presidential election next month.

Oil shares, drugmakers and trading firms outperformed helped by buying from investors hunting for high yields before the ex-dividend day.